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Melanite
Melanite

Manganotantalite
Manganotantalite



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Melanite
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Manganotantalite

Melanite and Manganotantalite Optical Properties

1 Optical Properties
1.1 Luster
Subadamantine, Vitreous
Not Available
1.2 Pleochroism
Not Available
Sometimes strongArthur Thomas
1.3 Dispersion
0.06NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.855-1.8952.19-2.34
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not Available0.015
Achroite
0 0.296
1.9 Clarity
Translucent
TransparentWalter Schumann

Melanite and Manganotantalite Optic Character

Melanite and Manganotantalite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Melanite and Manganotantalite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Melanite and Manganotantalite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Melanite and Manganotantalite Transparency

Similar to their colors, Melanite and Manganotantalite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Melanite is Translucent while Melanite is Translucent in appearance.